The drawbacks of difficult selection and recovery of iron ore magnetic separators in the beneficiation process

The drawbacks of difficult selection and recovery of iron ore magnetic separators in the beneficiation process

China has abundant but not abundant iron ore resources, mainly consisting of medium to low grade ores. Rich ore reserves only account for 1.8%, while poor ore reserves account for 47.6%. There are many small and medium-sized mines, few large mines, and few super large mines. The type of ore is complex, with a large proportion being difficult to beneficiate and multi-component coexisting ore. In response to the drawbacks of difficult selection and recovery in the iron ore magnetic separation process, our company's researchers have improved and developed an iron ore magnetic separator, which effectively solves the problems of fine particle size distribution of useful components or close distribution with harmful components, making it difficult to select and recover. This has led to low iron ore beneficiation recovery rate, improved the efficiency of iron ore selection, and enabled the development and utilization of symbiotic ores more effectively. 1. High recovery rate: The powerful and stable magnetic source of the iron ore magnetic separator enables the recovery rate of iron ore to exceed 95% during the beneficiation process. Even in harsh working environments, it can maintain long-lasting magnetic stability, and magnetic demagnetization does not exceed 5% at room temperature for ten years. 2. High iron ore grade: The iron ore magnetic separator adopts an open motion composite magnetic system, which increases the magnetic flipping force and speed during the sorting process. Regular gradual decline can ensure a high recovery rate of iron powder and improve the grade of iron ore. The iron ore magnetic separator produced by our company has been widely welcomed by investors in iron ore beneficiation since its listing. Our company's iron ore magnetic separator uses neodymium iron boron material as a permanent magnet system, with a high magnetic field and a single magnetic meter magnetic field of up to 5000 Gauss. Production practice has proven that the iron ore magnetic separator can achieve the designed magnetic strength with only one magnetic block, without the need for multi-layer stacking, greatly reducing the total production investment.

The drawbacks of difficult selection and recovery of iron ore magnetic separators in the beneficiation process